 He first played at the Abbey Theatre in 1977 in a production of "Wild Oats" and went on to perform in many other Abbey productions.In 1982, Mick starred in the TV series "The Ballroom of Romance" alongside Brenda Fricker.From 1983 he played the role of Miley Byrne in the RTÉ soap "Glenroe", reprising the character that he played earlier in the "Bracken" in 1978.